top soil的意思|示意

Jonathan Lynch: For some nutrients like phosphorous top soil , we want shallow roots.

纳森?林奇: 为有效吸取表土磷等营养物, 浅根更适合.

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For some nutrients like phosphorous which are in the top soil, we want shallow roots.

有些养料位于土壤表层,比如磷, 那么我们就需要较浅的根.

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Heavy rain can quickly wash away the rich top soil on flat, open land.

飘泼大雨能很快地冲走那里的平坦开阔的表层土壤.

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When all top - soil is gone, nothing remains but worthless desert.

上层泥土冲走后就只留下贫瘠的沙漠.

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